File:Visualisation of a (256,256;4,4) 2 de Bruijn torus.png
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Visualisation_of_a_(256,256;4,4)_2_de_Bruijn_torus.png (256 × 256 pixels, file size: 1 KB, MIME type: image/png)
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[edit]DescriptionVisualisation of a (256,256;4,4) 2 de Bruijn torus.png |
Visualisation of a (256,256;4,4)_2 de Bruijn torus - array, containing all 4x4 binary matrices exactly once. Entries of 0 are encoded as black, and entries of 1 are encoded as white pixels; opposite ends need to be identified to create the torus. This matrix as text (extracted from this image) can be found here: https://pastebin.com/tkiNzrdL |
Date | 1993/97 (for data), 12 Nov 2013 (for image) |
Source | Shiu, Wai Chee. "Decoding DeBruijn Arrays Constructed by the FMSS Method." Ars Comb. 47 (1997). |
Author | W-C Shiu (for data), B.R. Eggen (for image) |
Permission (Reusing this file) |
data was published & I've asked the author by email for permission |
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English: I've extracted the binary data from the paper (actually from an earlier technical report by same author, upon which paper was based) and created an ASCII ppm image, before converting it into a png image. I also explicitly checked that all 4x4 binary matrices were contained exactly once (with a small Fortran program which I wrote myself).
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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[edit]I, the copyright holder of this work, hereby publish it under the following licenses:
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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current | 20:25, 19 November 2013 | 256 × 256 (1 KB) | CRGreathouse (talk | contribs) | Lossless compression. | |
13:55, 15 November 2013 | 256 × 256 (16 KB) | Breggen (talk | contribs) | {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|Visualisation of a (256,256;4,4)_2 de Bruijn torus - array, containing all 4x4 binary matrices exactly once. Entries of 0 are encoded as black, and entries of 1 are encoded as... |
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